正常人闪烁光视网膜电图和闪烁光视诱发电位的定量分析

Quantification of Flicker ERG and VEP in Normal individuals

目的探讨闪烁光视网膜电图和闪烁光视诱发电位在正常人的变化规律。方法记录51例正常人10Hz闪烁光VEP和30Hz同陈光ERG，使用离散富里叶法分析波形的振幅和相位。结果应按20岁以下组、20～40岁组和40岁以上组对正常入进行记录。10Hz闪烁光VEP基波、二次谐波的振幅，二次谐波的相位，30Hz闪烁光ERG基波的振幅和相位是分析的主要指标。结论闪烁光视网膜电图和闪烁光视诱发电位能进一步分离视锥细胞功能，对视功能进行更好评价。

To recognize the variation of Flicker Electroretinogram (ERG) and Visual Evoked Potentials (VEP)which can further separate the founction of cone cell in normal individuals. Methods 10Hz flicker VEP and 30Hs flicker ERG of 51 normal individuals were recorded, and the amplitude and phase of the waves were analysed by ixscrete Fourier Transform (DFT).Results The flicker electrophysiological testing should be recorded in three age groups:under 20 years, 20~ 40 years and over 40 years. In the analysis of 10Hz flicker VEP, the amplitude of foundmental and second response component were used for the amplitude analysis and the second response wave was applied for phase analysis fin the analysis of 30 Hz flicker ERG, the foundamental wave was used for both amplitude and phase analysis. The other amplitude and phaseis no value. Conclusion The only parts of all amplitude and phase of 30HZ flick-er ERG and 10Hz flicker VEP has of value in different age group for normals individuals.